Nylon is made from coal and petroleum.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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Hot water can freeze faster than cold water.
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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